(57) A compact telescopic umbrella is provided, wherein an upper unit (8) is provided
at an end of a middle rod (2) and a lower unit (5) is slidably provided on the middle
rod (2). An end of a main rib (10) consisting of four pieces of mutually pivotally
supported ribs (10a,10b,10c,10d) is axially supported, and the main rib (10) and the
lower unit (5) are connected by means of a receiving rib (22). Each rib (10a,10b,10c,10d)
of the main rib (10) is folded in a straight line by interlocking with the vertical
motion of the lower unit (5). Among the ribs of the main rib (10), a side curved portion
(54) and an inclined portion (56) are formed on the third rib (10c), and when the
main rib (10) is folded, a portion of the third rib (10c) opposite side of a pivotal
portion (16) with the second rib (10b) is not superposed on a portion of the second
rib (10b) with the pivotal portion so that the portions are adjacent to each other.
A four-side link mechanism (34) is formed by the receiving rib (22) and the second
rib (10b) of the main rib (10). The first rib (10a) and the third rib (10c) are connected
by means of the first connecting rod (36), and the second rib (10b) and the fourth
rib (10a) are connected by means of the second connecting rod (46), whereby four-side
link mechanisms (44,52) and are respectively formed between the first connecting rod
(36) and the main rib (10) and the second connecting rod (46) and the main rib (10).
|
|
